分布系数

Pore structure uniformity coefficient can evaluate pore structure inhomogeneous degree preferably. Ep average values of four areas distribute within 1.144～1.607. Distribution curves of Ep present upwarp, smooth and ward triple section.

2孔隙结构均质系数可较好地评价孔隙结构的非均质程度，4个研究区块的Ep平均值介于1.144～1.607之间，样品Ep分布曲线呈上翘、平缓、下凹的三段式。

As to concrete treating method, the thesis adds the components in third dimension to the original 2D MHD code, and inward flows are embedded along the side of the current sheet, through changes of certain flow's scale, its distance to the current sheet, the viscosity coefficient and the resistivity in the plasma, the magnetic field figure, the velocity vector figure and the density distribution figure with different situations would be showed and observed, the reconnection growth rate figure is to be presented also, and the physical explanation involved will be made consequently.

在具体的处理方法上，文章在原有二维MHD流体理论基础上加入第三方向的分量，并且在电流片两侧加入入流扰动，通过改变其大小，距离电流片的位置，等离子体中的粘滞系数和等离子体电阻率，从而观察不同扰动情况下磁场重联的磁场位形、流场位形或者密度分布，绘制出磁场重联增长率在不同入流扰动下的图像，并分析其中的物理过程。

The statistical property of the wavelet coefficients was analysed and the feasibility of the product lattice vector quantization algorithm based on cubic lattice applied for random variables of generalized Gauss distribution was proved.

分析了小波变换系数的统计特性，通过模拟实验论证了基於立方网格的Product LVQ算法对广义高斯分布随机变量的可行性。

In this paper the viscous flows around a mathematical SWATH in full scale are simulated based on the computational fluid dynamics commercial software FLUENT. The numerical results of total pressure, wall shear stress and the corresponding viscous resistance coefficient at different velocity are obtained. The computational viscous resistance coefficients are compared with the estimated ones using empirical formula. The validity of the software to predict the three dimensional viscous flows and viscous resi...

利用计算流体力学商业软件 FLUENT对一实尺度小水线面双体船数学船型的粘性绕流进行了数值模拟，得到了不同航速下的船体表面总压力、表面剪切应力分布和相应的粘性阻力系数；将各航速下的粘性阻力计算结果和经验公式估算结果作了比较，验证了 FLUENT用于计算小水线面双体船三维粘性流和粘性阻力的有效性。

By means of"random distribution model"proposed by Woodside, the calculation model of the effective thermal conductivity of Ni catalyst under reactions has been established

以Woodside随机分布模型，建立了反应条件下催化剂有效导热系数的计算模型为

The aseismic control for pile-foundation bridges considering soil-structure-interaction was studied. There are two problems were solved:(1) The coefficient matrix is singularity because the elements of rotational degree in mass matrix equal to zero due to the flexiblity of the pier.(2) The iteration of control gain was not convergent because the dumped mass of the beam is very large comparing with that of the pier.

为将Smith[162]方法用于桥梁结构，本文解决了如下两个问题：(1)以弯曲变形为主的桥梁结构，其质量矩阵中相应于转动自由度的元素数值为零，由此导致等效固基模型中的系数矩阵奇异；(2)桥梁结构堆聚到顶部节点的梁体质量很大，由于质量分布不均匀导致控制增益的迭代计算不收敛。

We have calculated the electronic structure and optical properties of zinc blende structure ZnSe under different high pressure by means of plane wave pseudo-potential methodwith generalized gradient approximationin this paper.The total energy,density of state,energy band structure,and optical absorption and reflection properties under high pressure are calculated.Furthermore,we analyzed the change of electron structure,band structure and optical properties under high pressure using the results of experiment and theory

运用密度泛函理论体系下的平面波赝势和广义梯度近似方法，利用第一性原理计算了不同的压强下ZnSe晶体闪锌矿结构，得到了它的平衡晶格常数、总能量、电子态密度分布、能带结构、光反射与吸收系数等性质，具体讨论了高压下ZnSe的电子结构，并且结合实验结果定性地分析了高压下的光学性质。

By using CFD method, it was available to get not only the distribution of pressure, velocity and eddy air, but also the aerostatic force coefficients of a box girder section.

用计算流体力学方法模拟了桥梁跨中断面周围的风场特征，不仅能得到流场的压力、速度和涡旋的分布，还提取了箱梁断面的三分力系数。

In this paper,the algae eco-distribution of Yanxia Andrias davidianus nature reserve of Guizhou was studied,and the plant species richness of nature reserve′s algae was evaluated by the abundant flora of integrated coefficient method.

通过对贵州岩下大鲵自然保护区藻类的生态分布情况进行调查，并且利用植物区系丰富性综合系数法对保护区内藻类植物的丰富性进行了评价。

The major research includes the following three points. First, using finite element method, the influence factors on propagation properties for PMF couplers are analyzed, including the shape of coupler cross-section, the taper of coupler bipyramidal and the angle deviation of the birefringent axes.

基于热-结构-电磁多物理场耦合有限元方法，分析了保偏光纤耦合器的传输特性和耦合系数在熔锥区的变化规律，从而求解耦合模方程，得到偏振光经过耦合器后的光功率分布，继而对保偏光纤耦合器的性能参数分光比、消光比及附加损耗进行理论分析。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。